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Decimals
Fractions
Percents
Scientific Notation
Mixed Review
100
This decimal is 3 tenths plus 4 hundredths.
What is 0.34?
100
This fraction written as a decimal equals 0.625.
What is 5/8?
100
0.42 written as a percent.
What is 42%?
100
6,700,000 written in scientific notation.
What is 6.7 × 10^6?
100
A 25% discount on $80 saves this amount.
What is $20?
200
0.875 written as a fraction in simplest form.
What is 7/8?
200
This decimal written as a fraction equals 1/4.
What is 1/4?
200
0.07 written as a percent.
What is 7%?
200
4.2 × 10^-3 written as a decimal.
What is 0.0042?
200
1.25 written as a percent.
What is 125%?
300
Order these from least to greatest: 0.6, 0.06, 0.606.
What is 0.06, 0.6, 0.606?
300
1/3 + 1/6 simplified.
What is 1/2?
300
3/5 written as a percent.
What is 60%?
300
Which is greater: 3.1 × 10^5 or 2.9 × 10^6?
What is 2.9 × 10^6?
300
7/20 written as a decimal and as a percent.
What are 0.35 and 35%?
400
Rounding 12.786 to the nearest hundredth gives this decimal.
What is 12.79?
400
3/4 × 8/9 simplified.
What is 2/3?
400
15% of 80 equals this amount.
What is 12?
400
(2 × 10^3)(4 × 10^2) simplified in scientific notation.
What is 8 × 10^5?
400
A population drops from 12,000 to 10,800; this is the relative change.
What is a 10% decrease?
500
The sales tax on $24.99 at 8% is this amount, rounded to the nearest cent.
What is $2.00?
500
Doubling a recipe that uses 2 1/2 cups gives this total amount.
What is 5 cups?
500
A price rises from $50 to $65; this is the percent increase.
What is 30%?
500
0.000056 written in scientific notation.
What is 5.6 × 10^-5?
500
0.0008 written as a percent.
What is 0.08%?